Permutation lock



Aug. 1s, 1925. 1,550,128

v P. A. vERwER n PERMUTATION LOCK 5 AB Filed Dec.- 22, v1922 'IIIIIIIIIIIIIA VIII/Ill CII OFFICE.

PZEEER ABRA-MLML VEEWEB, GEF UTRECHT, NETHERLANDS, ASSIGMQR OF TWO-THIRDS T0 JACOBUS JOH'ANNES BETTNK, 0F HUIS TER HlllDE, TRECHT, NETH- ERLANDS.

PERMUTA'JDION LOCK.

Application filed December 22, 1922.

To @ZZ whomI t may conce/rn: y

Be it known that l, llnann .strani/tristi Vini- Wicn, citizen ot the Kingdom oit' the Netherlands, and of Dutch nationality, residing in Utrecht, Netherlands, titaalstraat 20, have invented certain new and useful :improvements in and Connected with permutation Locks, ot which the following is a full, clear, and enact specification.

The invention consists of the herein described improved construction ot pern'nitation locks and parts connected therewith and relates more particularly to an annular per* -Inutation lock or so called letter-or cipher' lock, which is especially apt for securing bicycles The object ot the invention is to construct a loci: in a simple and therefore cheap way and still to obtain a lock which an et'- licient protection.

rllhe lock according to the invention is composed oit a hollow open or incomplete annular shackle, which can be closed or completed by means of a correspondingly bent sliding-bolt, movable within the canal ot the shackle, like the known lining rings -for watch chains; between the sliding bolt and the hollow shackle a number of balls being situated, which serve for bolting the sliding bolt and each for a part engage in a recess in the sliding bolt, the bolting or the disengagement ot the sliding bolt being caused with the aid of rotatable marked locking rings which surround the shackle in its transverse direction and each of which has one or more passages or recesses i'or a ball.

ln the torni ot the invention the balls do not remain continually in their recesses in the sliding bolt and the disengagement ol the slide is effected by the tact, that all balls can enter in a radial direction into their respective recesses or cavities in the inner side ot each locking ring, as soon as these are turned into the right position, in other positions these rings prevent balls coming out oi? their recesses in the sliding bolt.

according to the invention each locking ring is of form in eross-section and so arranged around the annular` shackle, that the long leg of the l", which leg at its end is provided with a cavity, is directed towards the locking-bolt; further each locking ringv is rotatably enclosed between two guiderings lined to the shackle, and the bolting action takes place m the centre-plane ol each Serial No. 608,571.

ocking ring. The resting place of a yieldng tiekerand adjusting ball on the guide ring is in the neighbourhood of the flange of the locking ring and this ball is shut up between a spring and the inner side of that tlange, which may be provided with recesses corresponding t0 the marks on the outside of the locking ring.

According to the invention the sliding bolt is for the greater part preferably made of a tube with open seam, which tube is preterably thus bent, that this seam is situated on the inner side of the tube.

Referring to the accompanying drawings;

Figure l is a longitudinal section of a lock according to the invention.

Figure 2 shows a section on the line AA in Figure l.

Figure 3 is a section on the line B-B in Figure l, whereas Figure -l shows the lock in side elevation partly in section.

Figure 5 shows a section through the three locking rings of F ig. 4l.

ln the figures the hollow incomplete ring or annular shackle ol steel or the like is indic-ated with the reference number l, within vthis open rire` or shackle a correspondingly es bent .f-iliding-bolt 2 is situated, which can be hollow or solid and also of steel; same can be moved with the aid of a grip 3 and in its outsliden position closes or completes the shac le.

Mounted on a bicycle the spokes pass through this opening.

lletive'en the shackle and the sliding bolt, balls are interposed, which have their place in recesses or cavities l2 which are made in the surface ol the sliding bolt 2. The balls pre-vent the moving ot the bolt when one or more lockingnrings 5 are in the radial path ot the balls.

lhe recess or cavity for the ball in the end of the long legi-of the T-shaped locking ring 5 is numbered 6.

@'nly when the locking rings are all turned into that position wherein their recess 6 is placed 1`"etere the appertaining ball fl can the slid bolt 2 be moved in or out. The halls are t ien pressed in a radial direction, bj means of the sliding bolt 2, out of their res-ting places in the bolt into the cavities or recesses (i in the locking-rings.

The locking rings are in a simple and cheap way rotatablyniounted between guide rings 13 and 14- iXed in any suitable Way to the shackle.

One of these guide rings possesses an opening l5 for a tickeror adjustment ball 1G, which by a spring 17 is pressed against the inner side oif the iange 7 of the lockingring. rlhe locking` ring has in the inner' face of that fiange cavities for the ticker ball 16, which cavities each as to their position correspond to a deiinite position oi' the locking ring.

In the drawing the sliding bolt is a hol- `lon7 tube; for preventing that the bolt be cut through, there is provided at that end which in closed state oit the lock connects the ends of the legs ot the shackle a solid piece 1S, which can be inade of steel or other suitable material.

l claim:

l. A permutation lock consisting of a hollow, open and incomplete annular shackle, a correspondingly shaped sliding bolt lnovable Within the shackle, to close or open the same, and having cavities, balls in said cavities in the sliding bolt and projecting therefrom and retaining and releasing transversely disposed and rotatable permutation locking rings mounted on the shackle, each ring having a recess Yfor a ball.

A lock according to claiin l, in which each permutation locking` ring is of T- shaped cross-section and is transversely mounted ngon the annular shackle, so that the legv ot the is directed towards the sliding bolt, said leg having a recess in its inner periphery, and having two guiderings, tirer' to the shaclle, and between which each permutation locking ring is rotatably mounted one of said guide-rings` having a spring-pressed ball arranged tor engagement with the recesses in the inner face ci the rini ot the locking ring, and marks on the outside of the locking ring.

Si. A lock according to claiin l, wherein the sliding bolt is ior the greater part termed o'i tube with an open seam and is shaped so that the seam is disposed at the inner periphery.

in testimony Wherco't, l have signed my naine to this specification.

PIETER ABRAHAM VERVER. 

